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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.arch
Subject: Re: An execution time puzzle
Date: Mon, 10 Mar 2025 20:02:13 +0200
Organization: A noiseless patient Spider
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On Mon, 10 Mar 2025 13:36:03 -0400
Robert Finch <robfi680@gmail.com> wrote:
> Does it matter which core it is running on? Performance or economy?
> 

Performance and efficiency (that you misspelled as economy) cores are
Intel terms. AMD calls it Zen 4 and Zen 4c. 
According to all available information at CPU core microarchitecture
level Zen 4c is identical to Zen 4.